Crushing machine movable cutter with detachable and replaceable multi-piece combined cutter head structure
Through the multi-piece combined tool head structure with a detachable connection design, the problem of the traditional crushing machine tool needs to be replaced as a whole is solved, and the blade is quickly replaced and flexible, reducing costs and maintenance burdens and extending service life.
Patent Information
- Application Number
- CN202421755599.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-07-23
AI Technical Summary
The traditional crusher knives are designed as one-piece, which requires overall replacement when the blade is worn or damaged, which increases cost and maintenance burden, and is limited in flexibility and application range.
It adopts a detachable connection design, and the tool holder and the tool set are connected by mounting seat and threads. Multiple blades can be replaced separately to form a stable cutting surface.
It reduces the cost of use and maintenance burden, improves maintenance efficiency, extends service life, saves resources, and enhances application flexibility.
Smart Images

Figure CN223288188U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of chip cutting equipment, and in particular relates to a crushing motor cutter with a detachable multi-piece combined cutter head structure. Background Art
[0002] With the rapid development of industrial production, crushing machinery has been widely used in many fields such as chemical industry, pharmaceuticals, food, and mining. However, the design of traditional crushing motor blades mostly adopts an integrated structure, that is, the blade and the blade holder are fixedly connected and cannot be replaced separately. This design has exposed many problems in actual application: once the blade is worn or damaged, the user has to replace the entire moving blade assembly as a whole, which undoubtedly increases the difficulty and cost of replacement; at the same time, due to the integrated design of the blade and the blade holder, the user cannot choose the appropriate blade combination according to actual needs and material characteristics, which greatly limits the application range and flexibility of the crushing machinery; in addition, the frequent replacement of the entire moving blade assembly also brings a heavy maintenance burden to the user and causes unnecessary waste of resources. Utility Model Content
[0003] In order to overcome the problems existing in the prior art, the purpose of the present invention is to provide a crushing motor knife with a detachable multi-piece combined cutter head structure, including: a knife seat and a knife group; a plurality of mounting seats are distributed on the outer circumference of the knife seat, the number of the mounting seats corresponds to the number of the knife groups, and each of the knife groups is detachably connected to one of the mounting seats; the knife group is provided with a plurality of blades, and the plurality of blades are mounted on the surface of the mounting seat in a fit with each other.
[0004] The technical solution adopted by the present invention to solve its technical problems is: based on a detachable connection design between the knife holder and the knife group. Specifically, the knife holder serves as the basic part of the movable knife, and a plurality of mounting seats are distributed on its outer circumference. The number of these mounting seats corresponds to the number of the knife holders, ensuring that each mounting seat can be connected to a knife group. The knife group is composed of a plurality of blades, and these blades fit together to ensure that an integral and stable cutting surface can be formed after being installed on the surface of the mounting seat. In actual applications, the plurality of blades will be installed on the corresponding mounting seat surface in a fit with each other, and fastened by a specific connection method (such as threaded connection). The mounting groove of the mounting seat is provided with a first mounting groove, the outer side surface of the mounting seat is provided with a second mounting groove, and the two ends of the mounting seat are provided with a third mounting groove and a fourth mounting groove;
[0005] The knife set includes a first blade, a second blade, a third blade and a fourth blade; the first blade is connected to the first mounting slot, the second blade is connected to the second mounting slot, the third blade is connected to the third mounting slot, and the fourth blade is connected to the fourth mounting slot.
[0006] When a crushing operation is required, an electric motor or other power source drives the movable blade of the crusher to rotate. At this time, due to the detachable connection design between the knife group and the knife holder, the multiple blades on the knife group will rotate with the knife holder and cut and crush the material entering the crushing chamber. When the blade is worn or damaged, the user can easily remove the worn blade from the mounting seat by disassembling the connection and replace it with a new blade. In this way, the blade can be quickly replaced without replacing the entire movable blade assembly, greatly reducing the cost of use and the burden of maintenance. Preferably, the first mounting slot and the first blade are inclined in the cutting direction.
[0007] Preferably, after the first blade, the second blade, the third blade and the fourth blade are installed, the surfaces of the second blade, the third blade and the fourth blade are flush with the blade seat, and the sides of the first blade are flush with the second blade and the fourth blade.
[0008] Preferably, a protrusion is provided on a side of the third blade facing the first blade, and the protrusion presses the first blade toward the fourth blade.
[0009] Preferably, the first blade, the second blade, the third blade and the fourth blade are respectively connected to the first mounting slot, the second mounting slot, the third mounting slot and the fourth mounting slot via threads.
[0010] Preferably, a pin key is further included, a first positioning groove is provided on the side of the second blade facing the second mounting groove, and a second positioning groove is provided on the side of the second mounting groove facing the second blade;
[0011] One side of the pin key is installed in the first positioning groove, and the second positioning groove is buckled with the other side of the pin key.
[0012] Preferably, the inner corner of the third mounting groove is a first rounded corner, and the end corner of the third blade facing the inner corner is a second rounded corner, and the first rounded corner and the second rounded corner cooperate with each other;
[0013] The inner corner of the fourth installation groove is a third rounded corner, and the end corner of the fourth blade facing the inner corner is a fourth rounded corner, and the third rounded corner and the fourth rounded corner cooperate with each other.
[0014] Preferably, a mounting hole is provided at the axis center of the mounting seat, and an inner wall of the mounting hole is provided with a slot that cooperates with the knife shaft.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] Because the blade and blade holder of this utility model utilize a detachable connection, when the blade becomes worn or damaged, the user only needs to replace the worn blade without having to replace the entire movable blade assembly, thereby significantly reducing the cost of use. The detachable blade design also makes blade replacement more convenient and quick, reducing the additional workload and time costs associated with replacing the entire movable blade and improving maintenance efficiency. Furthermore, since the user can replace the worn blade individually rather than the entire movable blade assembly, the blade holder and other unworn components can be more effectively utilized, thereby extending the service life of the entire pulverizing motor blade. Furthermore, by replacing the worn blade individually rather than the entire movable blade assembly, it helps conserve valuable metal resources and reduce waste generation, which has positive environmental benefits.
[0017] In summary, the split-type crushing motor blade design described in the claims of the present invention achieves multiple beneficial effects such as reducing usage costs, improving maintenance efficiency, enhancing application flexibility, extending service life, saving resources and protecting the environment through the innovation of the detachable blade structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 This is an overall schematic diagram of the pulverizing motor blade with a detachable multi-piece combined blade structure;
[0020] Figure 2 Schematic diagram of the explosion of the crushing motor with a detachable multi-piece combined cutter head structure Figure 1 ;
[0021] Figure 3 Schematic diagram of the explosion of the crushing motor with a detachable multi-piece combined cutter head structure Figure 2 ;
[0022] 1. Blade holder; 10. Mounting seat; 100. First mounting slot; 101. Second mounting slot; 103. Third mounting slot; 104. Fourth mounting slot; 105. First positioning slot; 11. Mounting hole; 12. Slot; 2. Blade assembly; 20. First blade; 21. Second blade; 210. Second positioning slot; 23. Third blade; 24. Fourth blade; 25. Protrusion; 26. First fillet; 27. Second fillet; 28. Third fillet; 29. Fourth fillet; 3. Pin key. DETAILED DESCRIPTION
[0023] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of this application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0025] Example 1
[0026] The utility model discloses a crushing motor knife with a detachable multi-piece combined cutter head structure, such as Figure 1-Figure 3 As shown, it includes a knife seat 1 and multiple knife groups 2. There are multiple mounting seats 10 evenly distributed on the outer circumference of the knife seat 1, and each mounting seat 10 is designed with a mounting groove for mounting a blade. Figure 1 As shown, there are three mounting blocks 10, and three blade assemblies 2 are provided for mounting in conjunction with the mounting blocks 10. Therefore, after installation, each mounting block 10 is mounted with a blade assembly 2. Of course, the number of mounting blocks 10 and tool mounting blocks 10 can be adjusted based on specific circumstances. The blade assembly 2 is composed of multiple blades, which fit snugly together to ensure a cohesive, stable cutting surface when mounted on the surface of the mounting blocks 10. In actual use, the multiple blades are snugly mounted on the surfaces of the corresponding mounting blocks 10 and secured via a specific connection method (e.g., a threaded connection).
[0027] When pulverizing is required, an electric motor or other power source drives the pulverizing blades to rotate. Due to the detachable connection between the blade assembly 2 and the blade holder 1, the multiple blades on the blade assembly 2 rotate with the blade holder 1, cutting and pulverizing the material entering the pulverizing chamber. If the blades become worn or damaged, the user can conveniently remove the worn blades from the mounting base 10 and replace them with new ones. This allows for quick blade replacement without having to replace the entire blade assembly 2, significantly reducing operating costs and maintenance burdens.
[0028] In some optional embodiments, each mounting base 10 includes a first mounting slot 100, a second mounting slot 101, a third mounting slot 103, and a fourth mounting slot 104. The blade assembly 2 comprises four blades: a first blade 20, a second blade 21, a third blade 23, and a fourth blade 24. The first blade 20 is threadedly connected to the first mounting slot 100, the second blade 21 is mounted on the outer side of the mounting base 10 and connected to the second mounting slot 101. The third blade 23 and the fourth blade 24 are mounted on opposite ends of the mounting base 10 and connected to the third mounting slot 103 and the fourth mounting slot 104, respectively. These blades are designed in different shapes and sizes according to their respective functions and installation locations. Furthermore, blades in different locations can be replaced individually based on their varying wear, thereby reducing the amount of consumable blades required.
[0029] In some optional embodiments, the first blade 20 is designed to be inclined toward the cutting direction, so as to obtain a better cutting and crushing effect.
[0030] In some optional embodiments, the first blade 20 is connected to the first mounting groove 100 by a thread, the second blade 21 is connected to the second mounting groove 101 by a thread, and the third blade 23 and the fourth blade 24 are respectively installed at both ends of the mounting base 10 and are connected to the third mounting groove 103 and the fourth mounting groove 104 by a thread. This connection method greatly improves the efficiency of blade replacement.
[0031] In some optional embodiments, the second blade 21 is installed in the second mounting groove 101 so that its surface is flush with the blade seat 1, and the fourth blade 24 is installed in the fourth mounting groove 104, also ensuring that its surface is flush with the blade seat 1, and the first blade 20 is flush with the sides of the second blade 21 and the fourth blade 24.
[0032] In some optional embodiments, the third blade 23 is installed in the third installation groove 103, and ensure that the protrusion 25 provided on the side facing the first blade 20 can press the first blade 20 toward the fourth blade 24, thereby improving the stability of the installation of the first blade 20.
[0033] In some optional embodiments, a pin key 3 is further included, and a first positioning groove 105 is provided on the side of the second blade 21 facing the second installation groove 101, and a second positioning groove 210 is provided on the side of the second installation groove 101 facing the second blade 21; one side of the pin key 3 is installed in the first positioning groove 105, and the second positioning groove 210 is engaged with the other side of the pin key 3, thereby improving the stability of the installation of the second blade 21.
[0034] In some optional embodiments, to further improve the stability and service life of the blades, the inner corners of the third mounting slot 103 and the fourth mounting slot 104 are designed as first rounded corners 26 and third rounded corners 28, respectively, while the corresponding end corners of the third blade 23 and the fourth blade 24 facing the inner corners are designed as second rounded corners 27 and fourth rounded corners 29, respectively. This rounded corner design can reduce stress concentration and wear, thereby improving the durability of the blades.
[0035] In some optional embodiments, a mounting hole 11 is provided at the axis center of the mounting seat 10, and a slot 12 that cooperates with the cutter shaft is processed on the inner wall of the mounting hole 11 so that the cutter seat 1 can be firmly mounted on the main shaft of the crusher.
[0036] Through the description of the above specific embodiments, it can be seen that the split-type crushing motor blade design of the utility model realizes a detachable connection between the blade and the blade holder 1, making the replacement of the blade more convenient and quick, reducing the use cost and maintenance burden, and at the same time improving the application range and flexibility of the crushing machinery.
[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A pulverizing motor blade with a detachable multi-piece combined blade structure, characterized in that: include: Knife holder and knife set; A plurality of mounting seats are distributed on the outer circumference of the knife holder, the number of the mounting seats corresponds to the number of the knife groups, and each knife group is detachably connected to one mounting seat; The knife set is provided with a plurality of blades, and the plurality of blades are mounted on the surface of the mounting seat in close contact with each other; The mounting groove of the mounting seat is provided with a first mounting groove, the outer side surface of the mounting seat is provided with a second mounting groove, and the two ends of the mounting seat are provided with a third mounting groove and a fourth mounting groove; The knife set includes a first blade, a second blade, a third blade and a fourth blade; the first blade is connected to the first mounting slot, the second blade is connected to the second mounting slot, the third blade is connected to the third mounting slot, and the fourth blade is connected to the fourth mounting slot.
2. The pulverizing motor blade with a detachable multi-piece combined blade structure according to claim 1, characterized in that: The first mounting groove and the first blade are inclined toward a cutting direction.
3. The pulverizing motor blade with a detachable multi-piece combined blade structure according to claim 1, characterized in that: When the first blade, the second blade, the third blade and the fourth blade are installed, the surfaces of the second blade, the third blade and the fourth blade are flush with the blade seat, and the sides of the first blade are flush with the second blade and the fourth blade.
4. The pulverizing motor blade with a detachable multi-piece combined blade structure according to claim 3, characterized in that: The third blade is provided with a protrusion on a side facing the first blade, and the protrusion presses the first blade toward the fourth blade.
5. The pulverizing motor blade with a detachable multi-piece combined blade structure according to claim 1, characterized in that: The first blade, the second blade, the third blade, and the fourth blade are respectively connected to the first mounting slot, the second mounting slot, the third mounting slot, and the fourth mounting slot through threads.
6. The pulverizing motor blade with a detachable multi-piece combined blade structure according to claim 1, characterized in that: It also includes a pin key, a first positioning groove is provided on the side of the second blade facing the second mounting groove, and a second positioning groove is provided on the side of the second mounting groove facing the second blade; One side of the pin key is installed in the first positioning groove, and the second positioning groove is buckled with the other side of the pin key.
7. The pulverizing motor blade with a detachable multi-piece combined blade structure according to claim 3, characterized in that: The inner corner of the third installation groove is a first rounded corner, and the end corner of the third blade facing the inner corner is a second rounded corner, and the first rounded corner and the second rounded corner cooperate with each other; The inner corner of the fourth installation groove is a third rounded corner, and the end corner of the fourth blade facing the inner corner is a fourth rounded corner, and the third rounded corner and the fourth rounded corner cooperate with each other.
8. The pulverizing motor blade with a detachable multi-piece combined blade structure according to claim 1, characterized in that: A mounting hole is provided at the axis center of the mounting seat, and a slot that cooperates with the knife shaft is provided on the inner wall of the mounting hole.